It would have been expected, I think, if during that prss conference he had wiggled out of the situation by saying he had "done everything I can do." But he didn't do that. He postured to his base and gave false hope and then did not live up to his principles. It was his defining moment and it is now over. He can't lay claim to the principles he purports to have.
I will never trust Jeb or his brother our Presidant again! They failed to lead in this and I will never forget it!